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52200030 = 23517195387
BaseRepresentation
bin1100011100100…
…0001001011110
310122020000222110
43013020021132
5101330400110
65102454450
71202456451
oct307101136
9118200873
1052200030
1127513723
1215594426
13aa788bc
146d0b498
1548b1a20
hex31c825e

52200030 has 64 divisors (see below), whose sum is σ = 139656960. Its totient is φ = 12409344.

The previous prime is 52199999. The next prime is 52200053. The reversal of 52200030 is 3000225.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52199979 and 52200015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6997 + ... + 12383.

It is an arithmetic number, because the mean of its divisors is an integer number (2182140).

Almost surely, 252200030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52200030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69828480).

52200030 is an abundant number, since it is smaller than the sum of its proper divisors (87456930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52200030 is a wasteful number, since it uses less digits than its factorization.

52200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 52200030 is about 7224.9588234121. The cubic root of 52200030 is about 373.7291021600.

Adding to 52200030 its reverse (3000225), we get a palindrome (55200255).

The spelling of 52200030 in words is "fifty-two million, two hundred thousand, thirty".

Divisors: 1 2 3 5 6 10 15 17 19 30 34 38 51 57 85 95 102 114 170 190 255 285 323 510 570 646 969 1615 1938 3230 4845 5387 9690 10774 16161 26935 32322 53870 80805 91579 102353 161610 183158 204706 274737 307059 457895 511765 549474 614118 915790 1023530 1373685 1535295 1740001 2747370 3070590 3480002 5220003 8700005 10440006 17400010 26100015 52200030